If you play a sin card and the hero player is not able to fulfill one option, for example discard one upgrade card, does automatically the other option will solve for example get wounds or become corrupted?
Yes, if a hero cannot fulfill an option, they must choose the other option that they can fulfill. Thiago from CMoN has confirmed this:
Q: Pride Sin Card: "Damned if You Do" - If the target hero does not have any Upgrades, can the hero choose the "upgrade card" route (so that nothing happens) or must they choose to take 2 Wounds?
A: You cannot choose an option that is not available to you. So if you have no upgrades for the Sin to flip down, you must take 2 wounds. …damned if you don’t!